2016 年 37 巻 9 号 p. 416-421
The magnetic exchange force is an interaction between spins and is very important for analyzing magnetic properties. Magnetic exchange force microscopy (MExFM), which can detect the magnetic exchange force between the magnetic tip and the magnetic surface, has achieved the atomic-resolution imaging of the spin states at surface. In MExFM, however, the separation between a structure and a magnetic state on the surface has not been performed. In this paper, we propose a new MExFM using ferromagnetic resonance to separate the magnetic and non-magnetic tip-sample interaction. Here, we demonstrate tip magnetization modulation using ferromagnetic resonance, nano-scale magnetic contrast imaging and, finally atomic-scale spin selective imaging by MExFM using ferromagnetic resonance.
